Setting this according to --config was requested by Uwe
Kleine-König. There are some other ways that the configuration file
might be found in current notmuch, so check those as well.
As a bonus, fix a bug in the hook tests that left NOTMUCH_CONFIG set
even though a config file was provided via NOTMUCH_PROFILE.
[1]: id:
8baa58c3-7ab9-ec03-1bbd-
28aa5be838f2@kleine-koenig.org